CN211566975U

CN211566975U - Pressure maintaining jig for decorative ring of middle frame of mobile phone

Info

Publication number: CN211566975U
Application number: CN201921603453.8U
Authority: CN
Inventors: 卢卫勇; 张远平; 张远宝
Original assignee: Dongguan Runmao Precision Injection Molding Co ltd
Current assignee: Dongguan Runmao Precision Injection Molding Co ltd
Priority date: 2019-09-25
Filing date: 2019-09-25
Publication date: 2020-09-25
Anticipated expiration: 2029-09-25

Abstract

The utility model provides a cell-phone center dress escutcheon's pressurize tool, includes: the pressure maintaining device comprises an upper cover (1), a lower cover (2) and a pressure maintaining sheet (3), wherein the upper cover (1) and the lower cover (2) are fixed, and the pressure maintaining sheet (3) is positioned between the upper cover (1) and the lower cover (2); the upper cover (1) has: the pressure maintaining ring comprises an upper cover plate (11) and a pressure maintaining ring (12), wherein the pressure maintaining ring (12) protrudes from the lower surface of the upper cover plate (11); the lower cover (2) has: the support ring structure comprises a lower cover plate (21), a support ring (22) and a profiling table (23), wherein the support ring (22) and the profiling table (23) are protruded from the upper surface of the lower cover plate (21), the profiling table (23) is located in the middle of the support ring (22), the height of the support ring (22) is 3.4-3.6 mm, and the height of the profiling table (23) is 6.5-6.7 mm. Above-mentioned pressurize tool can keep the middle part planarization of cell-phone center at the pressure maintaining in-process, avoids the problem of cell-phone center local position jack-up, guarantees that cell-phone center and decorative ring have better pressurize effect.

Description

Pressure maintaining jig for decorative ring of middle frame of mobile phone

Technical Field

The utility model relates to a pressurize tool especially relates to a pressurize tool of cell-phone center dress trim ring.

Background

The appearance requirement of the existing mobile phone is higher and higher, and in the process of assembling the mobile phone, a plastic decorative ring is added between the hardware middle frame and the glass screen of the mobile phone for fixing and protecting, so that the glass screen is prevented from being cracked or shifted due to the fact that the glass screen contacts the hardware middle frame. And because the plastic decorative ring is very weak relatively, appear warping easily in the assembling process and the bonding strength subalternation problem, consequently need use the pressurize technology to solve.

However, for the conventional pressure maintaining jig, the lower cover of the conventional pressure maintaining jig uses all characteristic 3D profiles of the bottom surface of the middle frame of the mobile phone as a support surface, and if the flatness of the middle position of the middle frame of the mobile phone is not good, the middle position and the edge position (assembly position) of the middle frame of the mobile phone are extruded, so that the local position is jacked up, and finally the pressure maintaining effect is poor.

SUMMERY OF THE UTILITY MODEL

The utility model discloses technical scheme is to above-mentioned condition, and in order to solve above-mentioned problem and provide a cell-phone center dress escutcheon's pressurize tool, the pressurize tool includes: the pressure maintaining piece is positioned between the upper cover and the lower cover; the upper cover has: the pressure maintaining ring protrudes from the lower surface of the upper cover plate; the lower cover has: lower apron, support ring and profile modeling platform, the support ring with the profile modeling platform is all followed the upper surface of apron is protruding down, the profile modeling platform is located the middle part of support ring, the height of support ring is 3.4 ~ 3.6mm, the height of profile modeling platform is 6.5 ~ 6.7 mm.

Further, the pressure-retaining sheet is formed of a glass fiber material.

Further, the upper cover plate is formed by a plastic material, and the pressure-retaining ring is formed by a silica gel material.

Further, the upper cover is provided with a barb hole, and the barb hole penetrates through the upper cover plate; the lower cover has a barb protruding from an upper surface of the lower cover plate, the barb engaging with the barb hole.

Further, the upper cover is provided with a positioning column which protrudes from the lower surface of the upper cover plate; the lower cover is provided with a positioning ring, the positioning ring protrudes from the upper surface of the lower cover plate, and the positioning column is inserted into the positioning ring.

Further, the upper cover is provided with a first limiting column, and the first limiting column protrudes from the lower surface of the upper cover plate; the lower cover is provided with a second limiting column, the second limiting column protrudes from the upper surface of the lower cover plate, the first limiting column is right opposite to the second limiting column, and the distance between the first limiting column and the second limiting column is 0.7-0.9 mm.

After the technical scheme is adopted, the utility model discloses an effect is: the pressure maintaining jig with the structure can keep the middle smoothness of the middle frame of the mobile phone in the pressure maintaining process, avoids the problem of jacking the local position of the middle frame of the mobile phone, and ensures that the middle frame of the mobile phone and the decorative ring have better pressure maintaining effect.

Drawings

Fig. 1 is a schematic view of a pressure maintaining jig according to the present invention;

fig. 2 is a cross-sectional view of the pressure maintaining jig according to the present invention;

fig. 3 is a schematic view of an upper cover according to the present invention;

fig. 4 is a schematic view of the lower cover according to the present invention.

Detailed Description

It is specifically noted that the terms "first", "second" and "third" in the present application are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. All directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, and the like in a specific posture, and if the specific posture is changed, the directional indicator is changed accordingly.

The technical solution of the present invention is further described below by way of examples:

the utility model provides a pressurize tool of circle is decorated to cell-phone center combines fig. 1 and fig. 2 to show, and the pressurize tool includes: upper cover 1, lower cover 2 and pressurize piece 3, upper cover 1 forms fixedly with lower cover 2, and it is located between upper cover 1 and lower cover 2 to protect piece 3. As shown in fig. 3 to 4, the upper cover 1 includes: an upper cover plate 11 and a pressure maintaining ring 12, wherein the pressure maintaining ring 12 protrudes from the lower surface of the upper cover plate 11; the lower cover 2 has: the support ring comprises a lower cover plate 21, a support ring 22 and a profiling table 23, wherein the support ring 22 and the profiling table 23 are protruded from the upper surface of the lower cover plate 21, the profiling table 23 is located in the middle of the support ring 22, the height of the support ring 22 is 3.4-3.6 mm, and the height of the profiling table 23 is 6.5-6.7 mm. Wherein, the shapes of the pressure maintaining ring 12 and the support ring 22 are matched with the shape of the middle frame 4 of the mobile phone, and the shape of the profiling table 23 is matched with the shape of the groove in the middle of the middle frame 4 of the mobile phone. With reference to fig. 2, when the pressure maintaining jig is used, glue is coated between the hardware middle frame 4 and the decorative ring 5, the mobile phone middle frame 4 is placed on the lower cover 2, the edge of the mobile phone middle frame 4 is located on the support ring 22, the plastic decorative ring 5 is located on the edge of the mobile phone middle frame 4, the pressure maintaining ring 12 of the upper cover 1 biases the decorative ring 5 and the edge of the mobile phone middle frame 4, the pressure maintaining sheet 3 biases the middle of the mobile phone middle frame 4, and the decorative ring 5 is always stressed, so that the hardware middle frame 4 and the decorative ring 5 are always kept in a tightly matched state in the glue curing process, and the pressure maintaining time is 4 hours or more. In the pressure maintaining process, the pressure maintaining sheet 3 biases the middle part of the mobile phone middle frame 4, so that the flatness of the middle part of the mobile phone middle frame 4 can be improved; in addition, the support ring 22 and the profiling table 23 are arranged at a height so as to avoid the profiling table 23 from contacting the middle part of the middle frame 4 of the mobile phone on the premise that the support ring 22 contacts the edge of the middle frame 4 of the mobile phone. Namely, the profiling table 23 is not acted by the mobile phone middle frame 4 in the process of pressure maintaining, and the profiling table 23 only plays a role in alignment in the process of pressure maintaining, so that a worker is assisted in placing the mobile phone middle frame 4 at a correct position.

Specifically, the holding pressure sheet 3 is formed of a glass fiber material. The glass fiber has good corrosion resistance and high mechanical strength, and can prolong the service life of the pressure maintaining jig.

Specifically, the upper cover plate 11 is formed of a plastic material, and the pressure-retaining ring 12 is formed of a silicone material. The compressive capacity of plastic is strong, and non-deformable, silica gel can form interference fit with decoration circle 5, keeps biasing force. Wherein, the upper cover plate 11 and the pressure maintaining ring 12 are integrally formed by adopting a double-shot injection molding process, so that the precision and the consistency of the upper cover 1 are ensured.

Specifically, with continued reference to fig. 3 and 4, the upper cover 1 has a barb hole 13, and the barb hole 13 penetrates through the upper cover plate 11; the lower cover 2 has barbs 24, the barbs 24 protruding from the upper surface of the lower cover plate 21, the barbs 24 engaging with the barb holes 13. The fixation between the upper cover 1 and the lower cover 2 is achieved by the engagement of the barbs 24 with the barb holes 13.

Specifically, the upper cover 1 has positioning posts 14, and the positioning posts 14 protrude from the lower surface of the upper cover plate 11; the lower cover 2 has a positioning ring 25, the positioning ring 25 protrudes from the upper surface of the lower cover plate 21, and the positioning column 14 is inserted into the positioning ring 25. The cooperation of the positioning column 14 and the positioning ring 25 can realize accurate positioning between the upper cover 1 and the lower cover 2.

Specifically, the upper cover 1 has a first stopper 15, and the first stopper 15 protrudes from the lower surface of the upper cover plate 11; the lower cover 2 is provided with a second limiting column 26, the second limiting column 26 protrudes from the upper surface of the lower cover plate 21, the first limiting column 15 is opposite to the second limiting column 26, and the distance between the first limiting column 15 and the second limiting column 26 is 0.7-0.9 mm. When pressure is too large in the pressure maintaining process, the first limiting column 15 and the second limiting column 26 can contact with each other, and the upper cover 1 and the lower cover 2 are prevented from further approaching to cause damage to the middle frame 4 of the mobile phone.

Therefore, the pressure maintaining jig with the structure can keep the middle smoothness of the middle frame of the mobile phone in the pressure maintaining process, avoids the problem of jacking of the local position of the middle frame of the mobile phone, and ensures that the middle frame of the mobile phone and the decorative ring have better pressure maintaining effect.

The above-mentioned embodiments are merely preferred examples of the present invention, and do not limit the scope of the present invention, so all equivalent changes or modifications made by the structure, features and principles of the present invention should be included in the claims of the present invention.

Claims

1. The utility model provides a pressurize tool of circle is decorated to cell-phone center, its characterized in that: the pressurize tool includes: the pressure maintaining device comprises an upper cover (1), a lower cover (2) and a pressure maintaining sheet (3), wherein the upper cover (1) and the lower cover (2) are fixed, and the pressure maintaining sheet (3) is positioned between the upper cover (1) and the lower cover (2); the upper cover (1) has: the pressure maintaining ring comprises an upper cover plate (11) and a pressure maintaining ring (12), wherein the pressure maintaining ring (12) protrudes from the lower surface of the upper cover plate (11); the lower cover (2) has: lower apron (21), support ring (22) and profile modeling platform (23), support ring (22) with profile modeling platform (23) are all followed the upper surface of lower apron (21) is protruding, profile modeling platform (23) are located the middle part of support ring (22), the height of support ring (22) is 3.4 ~ 3.6mm, the height of profile modeling platform (23) is 6.5 ~ 6.7 mm.

2. The pressure maintaining jig for the decorative ring of the middle frame of the mobile phone according to claim 1, characterized in that: the pressure-maintaining sheet (3) is formed of a glass fiber material.

3. The pressure maintaining jig for the decorative ring of the middle frame of the mobile phone according to claim 1, characterized in that: the upper cover plate (11) is made of a plastic material, and the pressure-maintaining ring (12) is made of a silica gel material.

4. The pressure maintaining jig for the decorative ring of the middle frame of the mobile phone according to claim 1, characterized in that: the upper cover (1) is provided with a barb hole (13), and the barb hole (13) penetrates through the upper cover plate (11); the lower cover (2) has a barb (24), the barb (24) protrudes from the upper surface of the lower cover plate (21), and the barb (24) is engaged with the barb hole (13).

5. The pressure maintaining jig for the decorative ring of the middle frame of the mobile phone according to claim 1, characterized in that: the upper cover (1) is provided with a positioning column (14), and the positioning column (14) protrudes from the lower surface of the upper cover plate (11); the lower cover (2) is provided with a positioning ring (25), the positioning ring (25) protrudes from the upper surface of the lower cover plate (21), and the positioning column (14) is inserted into the positioning ring (25).

6. The pressure maintaining jig for the decorative ring of the middle frame of the mobile phone according to claim 1, characterized in that: the upper cover (1) is provided with a first limiting column (15), and the first limiting column (15) protrudes from the lower surface of the upper cover plate (11); the lower cover (2) is provided with a second limiting column (26), the second limiting column (26) protrudes from the upper surface of the lower cover plate (21), the first limiting column (15) is right opposite to the second limiting column (26), and the distance between the first limiting column (15) and the second limiting column (26) is 0.7-0.9 mm.